SEPARATOR FOR ALUMINUM ELECTROLYTIC CAPACITORS, AND ALUMINUM ELECTROLYTIC CAPACITOR

Title:

SEPARATOR FOR ALUMINUM ELECTROLYTIC CAPACITORS, AND ALUMINUM ELECTROLYTIC CAPACITOR

Document Type and Number:

WIPO Patent Application WO/2019/188659

Kind Code:

A1

Abstract:

A separator for aluminum electrolytic capacitors, which is interposed between a pair of electrodes, and which has a porosity of 65-85%, an average pore diameter of 0.5-25.0 μm and a Clark stiffness of 1-10 cm3/100. In addition, this separator is composed of a nonwoven fabric which has these features, while containing polyamide fibers. By using this separator in a solid electrolytic capacitor or in a hybrid electrolytic capacitor, the initial ESR and short circuit failure ratio are able to be reduced, while enabling improvement of reliability that is good enough for use in a harsh environment over a long period of time. In addition, this separator is able to be used in an aluminum electrolytic capacitor which uses a conductive polymer as a negative electrode material.

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Inventors:

OCHI TAKAFUMI (JP)
ISHIGAYASUMI MASAKI (JP)
KUMAOKA HIRONORI (JP)

Application Number:

PCT/JP2019/011699

Publication Date:

October 03, 2019

Filing Date:

March 20, 2019

Export Citation:

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Assignee:

NIPPON KODOSHI CORP (JP)

International Classes:

H01G9/02; H01G9/145; H01G9/15

Foreign References:

JP2010277800A	2010-12-09
JP2011228320A	2011-11-10
JP2014072361A	2014-04-21
JPH0371618A	1991-03-27
JP2017162840A	2017-09-14
JP2009099652A	2009-05-07
JP2006344742A	2006-12-21
JP2004165593A	2004-06-10
JP2002252147A	2002-09-06

Other References: